APPEAR AS
Confidential
225/352
Signal Local mux first
in NIT
Enables to Sort the Local Mux first in NIT
Include EIT signaling in
NIT
Enables the EIT linkage descriptor (0x04) to be excluded or included in the NIT
generation.
If EIT schedule information is present, by default, the system adds a linkage
descriptor in the NIT. If EIT is present in multiple transports, then according to the
DVB standard, the NIT will contain multiple linkage descriptors.
When all transport streams contain the EIT schedule, some STBs jump to a
different transport when using the EPG, causing the current program not to be
displayed concurrently with the EPG. To prevent this behavior, we recommend
that the linkage descriptor be excluded from the NIT.
8.6.11
DVB
ATSC,
ATSC
DVB
C
ONVERSION
When the output PSI mode is set to ATSC, some selected information will be translated from the DVB format to
the ATSC format. Also the DVB has a larger reserved PID range than ATSC.
The following information is translated:
Service name
(DVB) SDT
→
(VCT) Short channel name
(VCT) Short channel name
→
(DVB) SDT
Audio AC3 descriptor
The AC3 audio component is signaled with different stream type in DVB and ATSC.
DVB stream type in PMT: 0x06
ATSC stream type in PMT: 0x81
In DVB the AC3 component has an additional AC3 descriptor in the PMT.
DVB
→
ATSC: Changes stream type and removes AC3 descriptor.
ATSC
→
DVB: Changes stream type and adds the Additional AC3 descriptor.
PID Ranges
DVB reserved PID range: 0
→
31
MPEG/ATSC reserved PID range: 0
→
16
The conversion from ATSC
→
DVB may therefore involve remapping of component PIDs if the incoming PIDs are
in the reserved output range.